Empirical Modeling of a Rolling- Piston Compressor Heat Pump for Predictive Control in Low Lift Cooling

ABSTRACT Measured performance and empirical modeling of an inverter-drive

2002a. A critical review on studies of volatile organic compound (VOC) sorption by building materials

ABSTRACT The purpose of the investigation is to analyze the pros and cons of existing sorption model

form is not permitted without ASHRAE’s prior written permission. Cooling Airflow Design

During the past ten years as underfloor air distribution (UFAD) has begun to demonstrate significant growth in new commercial office building construction in North America, design engineers have often cited methods for airside design sizing as one of the most important unanswered questions regarding UFAD system design. The challenge in this regard has been how to accurately account for differences between a stratified UFAD environment and the familiar well-mixed environment produced by a conventional overhead (OH) variable air volume (VAV) air-distribution system. In this article, we present new guidance from a recently developed practical and simplified design procedure to determine cooling airflow design requirements for interior occupied spaces of a building with a UFAD system. Preliminary design guidance for perimeter zones is also provided. For decades engineers designing OH air-distribution systems have routinely calculated the amount of cooling airflow needed to remove sensible heat loads from a building space by using the following simple steady-state heat balance equation. Q × (hr · cfm · °F

Specifying Exhaust and Intake Systems

educational purposes only. ASHRAE does not endorse or recommend commercial products or services. This paper may not be copied and/or distributed electronically or in paper form without permission of ASHRAE. Contact ASHRAE at www.ashrae.org

Efficient low-lift cooling with radiant distribution, thermal storage and variable-speed chiller controls Part I: Component and subsystem models

Component and subsystem models used to evaluate the performance of a low-lift cooling system are described. An air-cooled chiller, a hydronic radiant distribution system, variable-speed control, and peak-shiftin