PRODUCT SPECIFICATIONS

Product Size Range

Customized for your needs

TAS Energy H2P units range from 1 to 5 megawatts for individual units. These units are designed and constructed for flexibility according to our customer’s needs, and can be ‘stacked’ or used in multiples.

Environmentally Safe Working Fluid

Nonflammable

TAS Energy’s H2P uses a family of refrigerants, including R134A and R234FA as the cycle working fluids. Unlike our competitors, this choice of working fluids removes the immediate risk of flammability as both R134A and R234FA are non-flammable. Additionally these refrigerants are approved by the EPA as environmentally safe. It is the same family of refrigerants we have been working with since 1999 in all of our highly efficient cooling projects totaling nearly 1,000,000 tons worldwide.

• R134a is not listed by or subject to the State of Nevada, Division of Environmental Protection, Chemical Accident Prevention Program (CAPP) - Permitting Requirements, eliminating cost and time delays.
•  R134a is non-flammable. This eliminates the need for the fire protection system which is required for the use of hydrocarbon based binary power plants. As a result, insurance costs will be less since the plant has no flammable materials.
• R134a is non-toxic and non-corrosive, unlike the ammonia which is proposed for use in other high-efficiency binary power cycles. R-134a eliminates a safety hazard for plant personnel, permitting costs and delays with state and federal agencies, and the concerns of those communities adjacent to facilities with a large ammonia inventory.
• The overall higher environmental and safety benefits of the R134a have a benefit beyond the reduced capital cost and permitting effort. With no flammability and no toxicity, the prospect of reduced staffing is presented.
• For a simple process design with few rotating components, the potential for reduced staffing and cost savings is a reality.

 Mission Possible: Low Temperature Development

Through TAS Energy’s development of a range of new high efficiency binary expanders applied to its H2P unit, lower than traditionally thought of as “commercially viable resource temperatures” can now be utilized for waste heat applications. Generally not considered viable for utility scale deployment, TAS has proven that electricity generation from low temperature resources of 205°F are efficiently and economically possible.

Specially Designed Turbo Expanders

For waste heat projects 5.0 MW and below TAS has developed an axial expander. The turbine design is focused mainly on geothermal and waste heat applications using R134a and R245fa and as the primary working fluid, to cover gross power output from 500 kW – 5.0 MW output with temperatures from 200 – 500°F (97 - 260°C).

Air Cooled or Water Cooled Condensers

Take your Pick

Water cooled (or wet cooled as some know it) is a standard everyone understands. However, make-up water is not always available to replace that water that is evaporated and lost or bled off to control the solids in the cooling system. More areas are imposing water constraints as water becomes a more precious commodity. If water is available, TAS provides the most robust and efficient water cooled cooling systems matched to optimize the design conditions.

Air cooling (dry cooling) solves the problem of zero water input. However the standard air cooled designs of the past leave a lot to be desired; poor performance, difficult and continuous maintenance, with hundreds of fans and belts that have to be attended to and replaced. TAS Energy has again redefined the industry, with the only advanced air cooled design that makes sense. We redesigned the system completely as a zero input, zero output, zero recirculation system that minimizes leakage, requires zero water input, and maximizes performance and service ability.

Advanced Heat Exchangers/Evaporators

Waste heat liquid can be captured as low as 200°F and for flue gasses at temperatures of 400°F and above. The TAS Energy supercritical cycle captures the thermodynamic advantage of a continuous working fluid temperature rise without isothermal boiling (an advantage over the typical iso-pentane process), and without the complexity of a multi-fluid ammonia water process (or the inherent corrosion and hazards of working with ammonia). The equipment design risk is no greater than that for any other heat exchanger designed for a power plant, whether organic Rankine cycle or conventional steam.

Market Applications

The Low Hanging Fruit: Industrial Consumers

As the largest consumer of electricity, the industrial sector offers a multitude of opportunities to cut losses in electrical energy. Industrial facilities work continuously to increase shareholder value and reduce expenses, and have found that energy efficiency investments is often a viable avenue to achieve those end goals. A unit of electricity wasted as heat is a unit not being put toward the manufacturing of more goods, and that means lower profits.

For this reason, many industrial producers are moving to use this excess heat to generate electricity that they can further use in their plants. This is Heat-to-Power, heat that is a by-product of production, harvested and used to generate electricity.

Sample Industrial Applications:

• Silicon Manufacturing
•  Petroleum, Chemicals, Forest Products
• Iron, Steel, Metals - Metal quenching/cooling processes/ hot gas clean-up
• Food and Beverages
• Drying processes
• Air Products, By-product gases
• Cement, Glass, Calcining
• Natural Gas Compressor Stations and Pressure Reduction (let down)
• Landfill Gas
• Municipal Waste Incineration
• Solid Fuel Boilers – Biomass, FDR
• Industrial Boilers 
• Flaring – petroleum, off gas
• Reciprocating Engines
• Conventional Simple Cycle Generation - Turbines
• Thermal Oxidizers
• Steam Reduction 

“Greening” Oil and Gas Processing

Oil and gas development waste large quantities of heat as a byproduct of their processes, just like industrial manufacturers. Waste heat from oil and gas processing are most commonly found from reciprocating engines at gas compressor stations and gas flues at processing facilities.

Compressor Stations

Simple cycle gas turbines or reciprocating engines are used to drive pipeline compression in compressor stations. Recent discoveries and developments of the Marcellus and Barnett Shales provide opportunities into the future. In fact, estimates show there may be 150 MW of waste heat to be captured from the development of the Marcellus Shale alone, roughly enough power for 150,000 American homes. Most of the compressor stations are typically located in remote areas and are usually unattended, or have a limited maintenance team during weekdays and regular working hours. This is the ideal application for TAS H2P systems as they lend themselves to minimal attention, and remote unattended operation is a reality.

Gas Processing Plants

In addition to gas pipelines, heat is wasted at refineries and processing plants. Gas plants have significant electrical demand, allowing for the majority of the power from a heat recovery unit to be consumed internally, and thereby offsetting higher priced purchased power and offering higher reliability via island mode capabilities. Due to the relatively high in-house load demand, interconnection upgrades are often limited.

The benefits are clear; the load is used internally, usually a simple interface with the heat source is possible, there is a minimum interference with the main process, often there are minimal permitting and land use issues, and usually an excess of land. Finally, plant operators are familiar with a base-load 24/7 operation, and the plant team is already comfortable with the organic heat transfer and working fluids as applied to heat recovery application maintenance, further reducing costs.

Other oil and gas process are possible applications. Each gas flare represents potentially 1.0 MW of zero carbon emission electricity simply being thrown away into the atmosphere. A general rule of thumb for understanding the magnitude of a MW is that each MW represents enough power for approximately 1,000 or more American homes.