Quantcast
Channel: HVAC Discussions - Recent Threads
Browsing latest articles
Browse All 50 View Live

Four Low-Cost Or No- Cost Steps For Improving HVAC Performance

All too often, HVAC systems operate a far less than peak performance. The good news is that there are ways to improve performance significantly without making an equally significant capital investment....

View Article



Achieving Higher Performance Operations In Any Building

How important are high performance operations strategies? Experts say that a poorly designed building that is well-operated is likely to perform better than a well designed building that is poorly...

View Article

Engineer1946

My comment for this is simple. As NICE as it sounds, it is a PC attitude and simplistic VIEW of reality. To say that "If people cared, they would FIND or MAKE the time to "DO IT RIGHT" is obtuse, and...

View Article

ASHRAE Guideline 1.4P For Systems Manuals Aims To Get Design Information To...

ASHRAE has long been recognized for standards that set design criteria in areas like energy consumption or ventilation. But in the past few years, ASHRAE has been paying more attention to what goes on...

View Article

Ask a Cooling Tower Efficiency Expert

Throughout the month of July, Bill Harfst, a consultant with Harfst and Associates, who works with AT&T and the Environmental Defense Fund on environmental initiatives, will take your questions...

View Article


Buildings To Blame For Legionnaires' Outbreak In Wisconsin?

A report in the Milwaukee Journal Sentinel says that Milwaukee health department authorities are asking if cooling towers could be the cause of an outbreak of Legionnaire's disease in the area. There...

View Article

ASHRAE Guideline Maps Route to High-Performance Operations for Buildings

There are two sides to any high-performance buildings, but most of the attention goes to only one of them: design. In reality, high-performance operating strategies are equally important. And many...

View Article

Three HVAC Energy Saving Opportunities That FMs Should Be Aware Of

For many facility managers, HVAC energy efficiency is high on the priority list. If you are one of them, check out this article about energy saving opportunities for HVAC systems. The article looks at...

View Article


Solving Common Problems With Airside Economizers

Using an airside economizer system is a great way to save energy. But airside economizers aren't set-it-and-forget-it systems. Without proper attention and maintenance, the performance of those systems...

View Article


ALTERNATIVE DESIGN SOLUTION FOR HVAC

Reposting for SNEHASIS MITRA: HELLO EVERY ONE , I AM S MITRA , LOOKING FOR AN ALTERNATIVE DESIGN SOLUTION FOR HVAC . I AM PLANNING TO USE VRV/VRF WITH AHU ,CAN ANYONE PROVIDE ME IDEA ,APPLICABLE FOR...

View Article

Justifying Major HVAC Upgrades

Big ticket HVAC investments can be hard to justify when management will look only at simple payback, and not at methods like return on investment or net present value. But there are strategies facility...

View Article

Ensuring Savings From VFD Retrofits

Variable frequency drives (VFDs) are widely used in HVAC retrofit projects, and for good reason. By reducing the speed of motors in pumps and fans, VFDs frequently produce significant energy savings....

View Article

Noise Control Strategies For New HVAC Systems

Every facility manager thinks of energy efficiency and thermal comfort when an HVAC system is being designed. But the acoustics of an HVAC system don't always get the same attention. But noise and...

View Article


Mitsubishi is the Waive of the future,,,,,,,,,,And Architects should not be...

Mitsubishi has come a long way with there Diamond Citi Multi Systems and software to back it up. As An original HVACR-Controls specialist for many years these units are truly the most efficient and...

View Article

What is the efficient way of reducing carbon monoxide in room

I am writing this blog in hope of some suggestions. I have seen CO ( Carbon Monoxide) sensors and detectors in room in building automation system . I was trying to search some mechanism to oxidize the...

View Article


Big Picture View Can Lead To Bigger HVAC Upgrade Gains

With a building system as extensive and complex as the HVAC system, there are often many opportunities to improve performance, from low-hanging fruit on up. But to get the maximum benefit, facility...

View Article

ASHRAE Continues Work On Legionella Standard 188P

The fourth draft of ASHRAE Standard 188P, Legionellosis: Risk Management for Building Water Systems, could well be released late this summer, according to Tom Watson, chairman of the committee writing...

View Article


Controls Can Cut Rooftop Energy Use In Half

Advanced controls could cut rooftop energy use by more than half, according to a study by Pacific Northwest Labs. The rooftop units studied all had gas furnaces. The controls, which are now...

View Article

Pumping Strategy Can Lower Costs

In the right applications, variable only, primary flow pumping can save energy and reduce first costs, while extending equipment life. But there are challenges to be addressed to make these systems...

View Article

Legionella Standard: ASHRAE Releases New Draft Of Proposal

The fourth draft of ASHRAE's long anticipated proposed Legionella standard is open for public comment. Earlier versions proved to be controversial, and the standards committee was reformed, with a...

View Article

New Seasons Bring New HVAC Challenges

Wide day-to-day temperature swings are common across a wide swath of the country at this time of year. And that's only one of the issues facility managers have to deal with where warm weather is giving...

View Article


An Update On ASHRAE's Proposed Legionella Standard 188P

ASHRAE's proposed Legionella Standard, 188P, has been under development for nine years. The latest draft has a new title, “Legionellosis: Risk Management for Building Water Systems," and a new stated...

View Article


Berkeley National Lab Aims At Improved Fault Detection For HVAC

The 13 most common faults in commercial HVAC system waste energy to the tune of $3.3 billion a year, according to estimates from Lawrence Berkeley Laboratories. LBNL is working to develop improved...

View Article

HVAC Projects in Existing Facilities: How to Smooth the Way

Big HVAC projects in existing facilities are tough undertakings — they're noisy and they're complex, since they're trying to avoid disrupting occupants. But nine strategies can help avoid "issues."...

View Article

Technology Improvements Can Cut HVAC Energy Use

Two building systems — lighting and HVAC — consume more energy than everything else combined. Improvements in lighting technology seem to have gotten the most publicity, but current HVAC technologies...

View Article

Browsing latest articles
Browse All 50 View Live




Latest Images