Governments

Product Highlight

The Thermodynamic Principles of LPA

Most current refrigeration and air conditioning systems waste 20% to 40% of

Model LPA® 860-SS-075

860-SS-075-B | 4 to 30 GPM | Max Head 50 feet PS

Governments

Carbon-Trust-Industrial-Refrigeration-equipment-eligible-for-enhanced-capital-allowances

Carbon Trust, Industrial Refrigeration Equipment Eligible for Enhanced Capital Allowences

Liquid pressure amplification (LPA) involves the use of a pump between the condenser and the expansion valve in a refrigeration system. This pump raises the liquid pressure at the expansion valve allowing the head pressure to be lowered. This reduces the power required by the compressor (increasing the COP) to achieve a given amount of cooling. Many refrigeration systems operate with higher head pressures than necessary. Without controls, head pressures would be lower in mild and colder weather compared with hotter days.

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Carbon Trust: How to implement liquid pressure amplification to refrigeration plant

Depending on the size of plant, its operating hours and the cost of electricity, financial savings can be substantial. Generally, the larger the plant, the better the return on investment. On a 300kW plant, energy savings of up to 25% have been seen.

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NYC Waste Les$ – Ice Arena Technology – Liquid Pressure Amplification

This is the premier issue of NYC WasteLe$, your information source on reducing costs through improved efficiency. You can rely on this waste reduction and energy conservation quarterly to keep you informed of important developments and cost saving opportunities for stadiums, arenas, and convention centres. NYC WasteLe$ is a non-regulatory waste prevention program initiated by the New York City Department of Sanitation (DOS) with support from the New York State Energy Research and Development Authority (NYSERDA) and the U.S. Environmental Protection Agency (EPA) Region II. NYC WasteLe$ supports City waste prevention efforts to help local businesses maintain and enhance their competitiveness.

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Funded by Defra – Development of Technologies to Reduce Energy in a Potato Store

In general potatoes are chilled and stored in the same systems. Unlike many other foods potatoes generate CO2 and heat due to respiration during storage. High air leakage into potato stores is one of the primary causes of high-energy costs in storage. Attention to key areas like joints in structures and doors is important. Exceptionally good sealing in buildings can lead to the build up of CO2 which can itself lead to problems with the crop and with safety. However, this is something that can be managed easily with controlled low-level ventilation. Traditionally potatoes have been stored in boxes in unrefrigerated stores.

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Carbon Trust, How to apply Liquid Pressure Amplification to a Refrigeration Plant

LPA® (Liquid Pressure Amplification) can be applied to manytypes of refrigeration plant, including air conditioning systems. The benefits depend upon the type ofrefrigerant being used in the plant and the operating conditions.

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