ammonia refrigeration system Articles

Exergoeconomic optimisation of an aqua-ammonia absorption refrigeration system

Optimisation of thermal systems is generally based on thermodynamic analysis. However, the systems so optimised are often not viable due to economic constraints. In this paper, an attempt is made to minimise the overall operation and amortisation cost of an aqua-ammonia vapour absorption refrigeration system for air-conditioning application using the theory of exergetic cost. This simplified ...

Nov. 15, 2004

By Inderscience Publishers

Exergoeconomic analysis of industrial brine chilling unit using aqua-ammonia vapour absorption refrigeration system

Exergoeconomic analysis of an industrial brine chilling unit using a large capacity aqua ammonia Vapour Absorption Refrigeration (VAR) system is carried out. The analysis is based on Tsatsaronis's Thermoeconomic Evaluation and Optimisation (TEO) Method which is one of the many methods that was developed since the pioneering work of Tribus and Evans. The economic cost of all the flows and product ...

Apr. 21, 2011

By Inderscience Publishers

Low recirculation rate evaporators

Abstract Fin coil evaporators with enhanced internal tube surfaces allow for optimum performance with a minimal overfeed rate. Reducing the overfeed rate requiresless pumping power and smaller line sizes to the evaporator. Additionally, less compressor power is required for the same refrigeration capacity because the wet suction line pressure drop is reduced. Lower compressor power results in ...

May 23, 2017

By Evapco Inc.

Ammonia Vent Line Gas Detector

The LPT-A Vent Line Ammonia Transmitter (P/N: LPT-A-VLT-NH3-S) is designed for continuous monitoring of ammonia levels in the vent lines of refrigeration systems caused by equipment failure or system over pressurization. Slow leaks of refrigerant can be costly over time and a dangerous situation could present itself if a high pressure release were to occur. The VLT provides continuous, real-time ...

Feb. 10, 2016

By Critical Environment Technologies Canada Inc. (CETCI)

Chemical Industry: Ammonia Emergency Plan Calls on Packed Tower to Scrub Released Chemicals - Case Study

A few years ago Union Camp turned a corner. Management decided that advance planning would take the place of reacting after the fact to an emergency or regulatory agency demands. At Union Camp’s Dover, OH. facility, byproducts of the paper industry are converted into usable specialty chemicals for cosmetics, adhesives and other industries. Crystallization is a process used intensively with ...

Feb. 16, 2016

By CR Clean Air Group

Pulp & Paper: Ammonia Emergency Plan calls on Packed Tower - Case Study

A few years ago Union Camp turned a corner. Management decided that advance planning would take the place of reacting after the fact to an emergency or regulatory agency demands. At Union Camp’s Dover, OH. facility, byproducts of the paper industry are converted into usable specialty chemicals for cosmetics, adhesives and other industries. Crystallization is a process used intensively with ...

Feb. 16, 2016

By CR Clean Air Group

Enhesa Enforcement Corner - Issue 3

Enforcement in September 2017 Input from Ruth White, Jimena Murillo, Deidre Perquy, Elise Saade, Tjeerd Hendel-Blackford, Michael George Pantelides and Karolina Wrzecionkowska Enhesa keeps an eye on regulatory enforcement actions around the globe, which can range in magnitude and severity – but all add up. Here are just some examples of the many enforcement cases that occurred around ...

Dec. 4, 2017

By Enhesa - Global EHS & Product Compliance Assurance

Breaking the code, rev 1 - compliance requirements for California title 24-2013 for Cooling Towers, Closed Circuit Coolers and Evaporative Condensers

The California Energy Commission released the final version of Title 24-2013 last Fall, and early this year changed the effective date of the standard from January 1, 2014 to July 1, 2014. Equipment selected for the State of California will need to meet the new Title 24, Part 6 requirements beginning July 1, 2014. Relevant requirements include: Increased efficiency requirements for Open, Axial ...

May 24, 2017

By Evapco Inc.

Department of Homeland Security publishes list of chemicals for security rule

On November 1st The Department of Homeland Security (DHS) posted on the Internet (www.dhs.gov) a Final Rule and Matrix List (Appendix A) identifying chemicals of interest (COI) that define coverage pursuant to Section 550 of the Homeland Security Appropriations Act of 2007 (Section 550). The rule was also published in the Federal Register on November 20th. This Final Rule establishes three ...

Jan. 7, 2008

By Avogadro Environmental Corporation

Western gateway storage company first to save with Evapcold - Case Study

The best solution for freezer and cooler applications Western Gateway Project Specifications Equipment: (2) LCR-060P-L20-2H-W Evapcold Units (2) ATWB 9-7K12 Fluid Coolers Capacity: 70 TR per LCR Unit x (2) = 140 TR max capacity Charge: 290 lbs. NH3 per LCR Unit x (2) = 580 lbs. NH3 vs. 3500 lbs. NH3 for comparable stick-built system Western Gateway Storage Company is the top cold ...

Aug. 1, 2016

By Evapco Inc.