23 00 00 Heating, Ventilating, and Air Conditioning (HVAC)

Category Archives: 23 00 00 Heating, Ventilating, and Air Conditioning (HVAC)

 

Xypex: Concrete Waterproofing with Crystalline Technology

featured2

Crystalline waterproofing improves concrete durability, lowers maintenance costs, and extends building lifecycles From building foundations, elevator pits, floor slabs, and exterior precast panels to water treatment facilities and underground urban infrastructure, concrete is the most commonly used construction material.

Read More

Prescription for Energy Savings: Reducing cost and consumption with upgraded cooling tower fans

19297247_l copy

The average hospital uses three times the energy of typical commercial buildings, and U.S. medical facilities spend $8.8 billion annually on energy. Between lighting, medical equipment, HVAC, and plumbing, energy consumption in medical facilities outpaces any other type of building. For large hospital systems, annual costs can reach into the tens of millions of dollars—no small amount in an industry of thin margins.

Read More

Water-source VRF Zoning 101: Combining geothermal with variable refrigerant flow

Photo © OnSite Photography

Variable refrigerant flow (VRF) HVAC zoning and geothermal systems are two of the most energy-efficient options for heating and cooling available—now, new hybrid assemblies combine the two. This article provides an overview of geothermal (or water-source) with VRF zoning technology and its advantages compared to traditional geothermal systems, air-source VRF zoning systems and conventional HVAC systems. In addition, the article will discuss considerations for specifying water-source VRF zoning systems and provide case studies of successful applications.

Read More

Saving on Natatorium Energy Costs with Green Options

Photos courtesy Jarmel Kizel Architects and Engineers

New technologies can provide optimal natatorium environmental control and energy savings. Today’s indoor pool dehumidifiers and outside air ventilation systems technology has changed so much over the last decade, a new or retrofitted natatorium stands to save millions of dollars in energy costs over the 15 to 25-year lifecycle of the equipment. Equipment comes with reduced refrigerant charges of up to 85-percent, compressor heat recovery for free pool water heating, exhaust heat recovery for preheating outdoor air, modulating controls for pinpoint temperature and humidity control, glycol heat rejection to dry coolers, and web-based microprocessor monitor, alarms, and control for factory technician review.

Read More

Solar Air-heating Systems 101: Cigas Machine Shop

A total of 1084 m2 (11,670 sf) of black, transpired solar collector
wall panels were installed at the Cigas Machine Shop in
Pottstown, Pennsylvania.
Photo courtesy ATAS International

The Cigas Machine Shop in Pottstown, Pennsylvania, is located in a building previously owned by the Bethlehem Steel Corporation, with parts of the structure dating back to the late 1880s. Back in that era, Bethlehem Steel was involved in the production of fabricated components used in the construction of the Golden Gate and many other familiar bridges.

Read More