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This New Door Design Solves an Old Problem

first_imgThe door is headed for productionVanAir Design is the brainchild of a half-dozen students who enrolled in a course in 2012 called New Venture Design at the University of British Columbia. They built their prototype doors and conducted both laboratory and site testing at the Centre for Advanced Wood Processing.The company that sprang from that project now operates in Vancouver.VanAir doors, which recently won a prototype award at an interior design show in Vancouver, will soon be going into production at Lynden Door, said Vick Yau, one of two principals at VanAir. The doors will be available through Alliance Door Products in paint grade or a number of wood veneers, including fir, oak, maple, birch, cherry, and hemlock.Doors will be produced in any size, Yau said by email, with the most common size a standard 3-0 by 6-8. He said a final price list wasn’t yet available, but the doors would probably sell for between 15% and 20% more than a standard solid-core door.A key consideration, as explained in Holladay’s blog, is how much free area is provided by a transfer grille (or in this case, a door) in order for it to be effective. Yau said the last prototype tested by VanAir had an equivalent open area of 50 square inches, which could provide 100 cubic feet per minute (cfm) of air at a pressure difference of 5 pascals, or 65 cfm at 2.5 pascals.Yau originally said the door had 100 square inches of free area, but he said later he realized he had erred. The 50 square inches of free area is short of the 60 to 120 square inches that most bedrooms should have.“We have recently commissioned a new testing lab to conduct tests on newer prototypes and on the production model, so I hope to give you more info/data down the road,” Yau said in a followup email. “We have built prototypes in the past that ranged from 36 square inches to 81 square inches in free open area. It is a matter of finding a balance between airflow and sound attenuation.”Yau also said that tests found the VanAir door to have a Sound Transmission Class (STC) rating of 19, compared with the 21 STC of a solid-core door and the 14 STC of a hollow-core door. The higher the number, the better a material is at blocking sound. HVAC contractors have several ways of getting around the problem, such as installing through-the-wall transfer grilles or crossover ducts between a ceiling grille in a bedroom, for example, and a ceiling grille in the hallway. But both of these options also allow the transmission of sound, an unattractive tradeoff.That’s the problem that the VanAir door addresses. Return-Air ProblemsReturn to Sender – HVAC Return Pathway OptionsPerfect Balance Makes the CutNew Green Building Products — March 2011An Easy Retrofit for Return AirAll About Furnaces and Duct Systemscenter_img UPDATEDAn interior door developed by students at the University of British Columbia provides a pathway for air between adjacent rooms, reducing pressure imbalances that can degrade the efficiency of forced-air heating and cooling systems.The VanAir ventilated door allows the passage of air, but it also includes sound-dampening features that solve a problem common to houses with forced-air heating and cooling systems: how to equalize air pressure between rooms without sacrificing privacy.Pressure imbalances are a well-known problem, as outlined by GBA senior editor Martin Holladay in this 2009 article.Ideally, each room with a supply grille also would have a return-air grille. But to lower costs, many houses have a single, large return-air grille in a central location, like a hallway or living room. When interior doors are closed, it’s difficult for return air to find its way to the return grille. Air pressure in the closed room builds up, forcing air into wall and ceiling cavities, while return air is pulled from an unintended source, such as the attic. RELATED ARTICLES last_img read more

TNT needs to ‘learn to adjust’ after another foul-laden game, says Racela

first_imgDILG, PNP back suspension of classes during SEA Games “It’s hard. We just have to learn to adjust. That’s just how it is,” he added.Despite having to deal with a huge disparity on free throws, TNT was still in it until the latter part of the fourth quarter where San Miguel pulled away behind June Mar Fajardo.Fajardo scored 12 of his game-high 27 points in the final frame.ADVERTISEMENT Trump strips away truth with hunky topless photo tweet Don’t miss out on the latest news and information. Robredo: True leaders perform well despite having ‘uninspiring’ boss PLAY LIST 02:49Robredo: True leaders perform well despite having ‘uninspiring’ boss02:42PH underwater hockey team aims to make waves in SEA Games01:44Philippines marks anniversary of massacre with calls for justice01:19Fire erupts in Barangay Tatalon in Quezon City01:07Trump talks impeachment while meeting NCAA athletes02:49World-class track facilities installed at NCC for SEA Games Photo by Tristan Tamayo/INQUIRER.netTNT head coach Nash Racela turned his attention to the KaTropa’s sloppy play and foul woes in their loss to San Miguel Beer Wednesday.Cautious with his words, Racela contained himself from elaborating further on the foul situation.ADVERTISEMENT Robredo should’ve resigned as drug czar after lack of trust issue – Panelo 222 million euro deal for Neymar ‘not expensive’, says Mourinho Lacson: SEA Games fund put in foundation like ‘Napoles case’ Church, environmentalists ask DENR to revoke ECC of Quezon province coal plantcenter_img “Too many turnovers for us. Too many fouls committed also. We had 26 turnovers, we had 31 fouls that led to 28 free throws, so,” said Racela.The KaTropa were whistled for personal fouls 11 times more than the Beermen, who went 19-of-28 from the line.FEATURED STORIESSPORTSSEA Games: Biñan football stadium stands out in preparedness, completionSPORTSPrivate companies step in to help SEA Games hostingSPORTSWin or don’t eat: the Philippines’ poverty-driven, world-beating pool starsTNT took a trip to the free throw line just eight times with import Michael Craig Jr., who played 35 minutes and took 25 shots, never having any chance to shoot freebies.“At least, we had eight free throws. They might say something about it so…” said Racela smiling. Ethel Booba on hotel’s clarification that ‘kikiam’ is ‘chicken sausage’: ‘Kung di pa pansinin, baka isipin nila ok lang’ Sports Related Videospowered by AdSparcRead Next LATEST STORIES National Coffee Research Development and Extension Center brews the 2nd National Coffee Education Congress MOST READ FEU Auditorium’s 70th year celebrated with FEU Theater Guild’s ‘The Dreamweavers’ View commentslast_img read more

10 months agoMan City boss Guardiola not dropping De Jong pursuit

first_imgMan City boss Guardiola not dropping De Jong pursuitby Paul Vegas10 months agoSend to a friendShare the loveManchester City boss Pep Guardiola isn’t dropping his pursuit of Ajax midfielder Frenkie de Jong.De Jong is preparing to move from Holland in 2019 and has courted interest from across Europe – including Barcelona and PSG.Indeed, De Jong’s father has talked up a move to Barca.However, Telefoot says City remain in contact, where Guardiola is driving the move.The Catalan is convinced De Jong can fit seamlessly into his system and has made his addition a priority for next year. TagsTransfersAbout the authorPaul VegasShare the loveHave your saylast_img

a month agoWatford chief Duxbury admits Gracia sacking was harsh

first_imgWatford chief Duxbury admits Gracia sacking was harshby Paul Vegasa month agoSend to a friendShare the loveWatford chief Scott Duxbury admits Javi Gracia’s sacking was harsh.But added that it was a necessary decision for the club’s future.”There’s no doubt it’s harsh from a human and personal perspective,” he said.”I get that. But I’ve got to make a professional decision and what I think is best for the football club is not perhaps what the media and pundits think is best.”Unlike the media and the pundits, I’m here and at the training ground every day, I see what’s working and I see what’s not working and am able to make an informed decision.”I don’t believe waiting and hoping for results to improve will work and that I need to make a change. It would be wrong of me to wait just because it looks better.”I’ve got to be decisive and I’ve got to make that change. Can it look harsh? Yes. But is it a decision made in the best interests of the football club? Absolutely.” TagsTransfersAbout the authorPaul VegasShare the loveHave your saylast_img read more

ASU Coach Bobby Hurley Threw Out The 1st Pitch At Last Night’s Diamondbacks Game

first_imgArizona State coach Bobby Hurley throws first pitch.Arizona State Bobby HurleyNew Arizona State head basketball coach Bobby Hurley is best known for his play as a point guard at Duke and later in the NBA. However, Hurley did play a little baseball growing up in Jersey City, N.J., and last night he had the opportunity to put some old skills to use. Hurley was a guest of the Arizona Diamondbacks and threw out the first pitch before the team’s game against the Chicago Cubs. Beforehand, he had a chance to meet some of the D-Backs players and coaching staff, and was even interviewed by Sun Devil quarterback Mike Bercovici, who was in attendance with teammate Jordan Simone. He is in the house! pic.twitter.com/DEtkghvLSW— Sun Devil MBB (@SunDevilHoops) May 24, 2015Sun Devils in the house. Tuffy. Hurley. Graham Rossini. #ForksUp pic.twitter.com/R886wvabYM— Sun Devil MBB (@SunDevilHoops) May 24, 2015Hey look at @MikeBerco and @JordanSimone38 with @BobbyHurley11 pic.twitter.com/g2hKLjipAs— Sun Devil MBB (@SunDevilHoops) May 24, 2015Don’t ask him tough questions Berco. pic.twitter.com/GPVxePXdfU— Sun Devil MBB (@SunDevilHoops) May 24, 2015The @BobbyHurley11 family is here to support him. Unless he bounces it. pic.twitter.com/OjcVsLRy24— Sun Devil MBB (@SunDevilHoops) May 24, 2015To add another degree of difficulty to Hurley’s toss, the Curtain of Distraction, usually employed by ASU’s student section to harass free-throw shooters, was brought out. It didn’t seem to affect him much, as his throw was accurate.Calm, cool and collected. Nicely done, @BobbyHurley11. https://t.co/sMyggvY9Yh— #VoteDbacks (@Dbacks) May 24, 2015Looks like Hurley is still comfortable with the ball in his hands, even if it’s not a roundball.last_img read more

Caribbean FLNG Aces Performance Test at Wison Yard

first_imgzoom The world’s first floating liquefaction unit Caribbean FLNG has completed its performance test at Wison Heavy Industry shipyard in Nantong, China.Wison Offshore & Marine said that this marks the first time in history that LNG has been produced onboard a floating facility.“During the 72-hour performance test, the excellent performance of the FLNG ensured all key design requirements and production capacities (guaranteed performance) were achieved for the unit’s operational effectiveness,” Wison said.The FLNG project is being delivered by Wison under an engineering, procurement, construction, installation and commissioning (EPCIC) contract with Belgian LNG and LPG carrier owner and operator Exmar.Additionally, Wison’s Nantong yard conducted the world’s first gas trial for the floating liquefaction unit before sail-out. Conducting gas trials and performance testing in the shipyard shortened the time required for project completion.In March 2016, Exmar received a termination of the tolling agreement with a Canada-based oil and gas company Pacific Exploration and Production (PEP) over the FLNG project, because liquefaction of LNG in Colombia was no longer profitable.As a consequence, the company entered negotiations on a change to its existing financing deal with the Industrial and Commercial Bank of China (ICBC) for Caribbean FLNG.last_img read more

NMDC eyes new iron ore deposits via auction and Govt dispensation route

first_imgHyderabad: NMDC Ltd plans to pursue allocation of new iron ore deposits both by participation in auctions and the Government dispensation route, even as it seeks to expand its brownfield mines to increase its production target to 67 million tonnes per annum (MTPA). During its 61st Annual General Meeting, NMDC unveiled plans to increase its production capacity to 67 mtpa. The development of a greenfield mine has been planned through a joint venture with Chhattisgarh State Mineral Development Corporation, for which it has appointed a mining developer. This will add 10 MTPA of capacity in the next four-five years. Also Read – Thermal coal import may surpass 200 MT this fiscalAddressing the AGM, N Baijendra Kumar, Chairman and Managing Director of NMDC, said it is proposed to raise the company’s current mining capacity of 43 MTPA to 67 MTPA with the aim of meeting the domestic iron and steel sector’s requirement. The company registered a good performance in the first quarter of this fiscal in spite of problems with the Donimalai lease. It is hopeful of resolving the issue. The company closed the last fiscal with a profit of Rs 4,642 crore and a networth of Rs 25,952 crore as of March 31, 2019. Progress on construction of the 3 mtpa steel plant at Nagarnar, Chhattisgarh, during 2018-19 has been noticeable and various packages are under construction and nearing completion. Cold trial of individual equipment under various packages is in progress. The steel plant is scheduled to be commissioned in three phases and is expected to be operational by the third quarter of FY 2020-2021. To increase the evacuation capacity from the Bailadilla sector, NMDC has taken up doubling of the Kirandul-Jagdalpur railway line, which will reduce the total turnaround time for rakes. The slurry pipeline from Bailadila to Jagdalpur and further to Visakhapatnam, with a capacity of 15 MTPA, will add to the ease of evacuation.last_img read more

Protective netting expanding at Bill Davis Stadium in 2017

Fans take in a game at Bill Davis Stadium on April 16.Credit: Courtesy of OSU AthleticsJust about anyone who has ever attended a baseball game has witnessed the following scene: A fan in attendance, usually along the first- or third-baseline, isn’t paying attention to the play on the field. Within milliseconds of the crack of the bat, a fan is struck by the ball and takes the brunt of the force of the live ball, only slowed down by air resistance.MLB made waves this winter by recommending that protective netting should be installed beyond the dugouts at all 30 MLB ballparks. Several minor league baseball teams have put in additional protective netting as well, including the local Columbus Clippers.Ohio State Executive Associate Athletic Director Martin Jarmond confirmed that in 2017, protective netting will be expanded at Bill Davis Stadium, extending to the ends of the dugouts on the baselines to protect the most vulnerable fans.“We are always looking for ways to provide a better and safer experience for our guests,” said Associate Athletic Director Mike Penner.  “The netting is one way to do that.” Penner told The Lantern that the department has budgeted $50,000 for the project.Some fans watching the OSU baseball team take on the University of Alabama-Birmingham on May 3 had a general consensus about the eventual extension of netting: For the safety of the fans, it’s a change that needs to happen.R.C. Perez, a third-year in sport industry, said he recalls a moment earlier this season when a group of kids sitting on the first-base side above the dugout was moved to another side of the stadium where a batted ball, broken bat or anything else thrown from the field couldn’t injure the young fans or anyone else in attendance.“It’s a great idea (for extra netting) because of the risk to kids and other fans,” Perez said.Dave and Diane Mosbarger — grandparents of OSU senior pitcher Daulton Mosbarger — sit by themselves along the third-baseline even with the dugout. Diane Mosbarger said that at least one of them has to be paying attention when a left-handed batter is at the plate.“So many people don’t pay attention too much,” she said. “Ushers are constantly paying attention to foul balls.”The couple has attended over 30 major league ballparks apiece, and although Dave Mosbarger has a different take than his wife, saying that more netting does take away from the experience a little bit, they both said they are sure they will attend many more games in the future despite the increased area of barrier between them and the field.John Grubb has been an usher at Bill Davis Stadium for five years, and he said in his five years working on the concourse level, he has seen too many close calls.“You always have several instances,” Grubb said. “One time, a thrown bat just missed some people in box seats … It’s just a matter of time.”OSU coach Greg Beals said that most fans now choose to view the game through the limited netting behind the home plate area, so the expanded netting will allow fans to sit comfortably anywhere they choose to sit in the ballpark.“I see the purpose in it, to protect the fans,” the coach said. “The fans are so critical in the major league game, and obviously to us as well, so it makes sense from that standpoint.”Beals said hanging the net with suspension cables is important to the process because it eliminated poles that can obstruct the view of fans.“I think once fans get used to the net, you don’t really notice it a lot,” he said.The installation process is expected to take four months. read more

Pellegrini is making his dreams come true

first_imgThe Italy and Roma footballer is happy with his club and nation right now and hopes he can still prove himself to fansRoma and Italy national team player Lorenzo Pellegrini is currently making his dreams come true for club and country right now.“I really liked De Rossi when I was a kid. Now he is my friend and teammate,” said Pellegrini to Football Italia.“The best player I worked with was probably Edin Dzeko, as he really impressed me at Roma. The strongest opponent was Leo Messi.”Cristiano Ronaldo, JuventusSerie A Betting: Match-day 3 Stuart Heath – September 14, 2019 Considering there is a number of perfect starts so early in the Serie A season, as well as a few surprisingly not-so perfect ones….“Gianluigi Buffon in goal. Paolo Maldini in defense. For the midfield, De Rossi and I, with Roberto Baggio upfront,” he said about his perfect Italian squad.“I don’t have a dream goal for Italy. I’d just be happy if the ball went in the net. I expect great things of this Nazionale, despite the fact we had a difficult moment. We are a strong and young squad who can do well.”“Against Portugal, we have to play with grit and determination, as we are in front of our home fans and want to bring home all three points,” he concluded.last_img read more