Heat Pipes Manufacturer & Supplier Singapore

Top Quality HVAC Heat Pipes for Energy Recovery and Dehumidification

About Heat Pipe Technology Singapore

+500 Projects Across Singapore and SE Asia

Recognized worldwide for our innovation and expertise. Our heat pipes and coils save energy and dramatically reduce heating and cooling costs.

Employing the very latest in passive and pumped heat transfer technology.

WRAP AROUND HEATPIPE

The wrap around heat pipe is a heat pipe wrapped around a cooling coil. It consists of two sections, the precool (evaporator) section placed before the cooling coil and the reheat (condenser section) placed after the reheat coil. The precool section is located in the incoming air stream before the cooling coil.

HEAT RECOVERY HEATPIPE

While conventional thermosyphon heat pipes can be very efficient, they are limited to operation in either heating or cooling mode, rather than both modes, recovering energy in either the summer or winter. However, certain regional climates have long summer or tropical conditions and little or no winter, while others are subject to the reverse. For efficient performance in such climates, it is ideal to utilise unidirectional thermosyphon heat pipes.

TUBELESS HEAT EXCHANGER

Special tubeless steel heat exchangers manufactured using a unique method.
Circular internal flow circuit with external return bends. High heat transfer and reduced footprint.
Reduced internal volume and easy-to-clean fins.
High mechanical strength.

WHAT ARE HEAT PIPES?

Heat pipes are thermal transfer devices capable of transferring heat and energy several hundred times faster than conventional methods.
A traditional heat pipe is a hollow cylinder filled with a vaporizable liquid. For HVAC applications, heat pipes utilise the R1 34A as a working fluid.

HEAT PIPE STRUCTURE

A traditional heat pipe is a hollow cylinder filled with a vaporizable liquid.
A. Heat is absorbed in the evaporating section.
B. Fluid boils to vapor phase.
C. Heat is released from the upper part of cylinder to the environment; vapor condenses to liquid phase.
D. Liquid returns by gravity to the lower part of cylinder (evaporating section).

For decades, refrigerant-heat pipes have successfully been used to provide significant energy savings as a means to achieve greater energy efficiency.

The use of heat pipes helps in the reduction of HVAC equipment sensible heat ratio (SHR), thus, enhancing its dehumidification capability.

BASIC OPERATIONS OF HEAT PIPES

Heat pipes are constructed with micro-grooved inner surface copper tubes which are strong thermal conductors. The heat is absorbed from the incoming warm air stream in the evaporator section, boiling the working fluid. Due to the elevated vapour pressure, the vapour moves rapidly to the cooler condenser section of the heat pipe, carrying with it the absorbed heat.

As the vapour reaches the condensing section of the heat pipe, the released heat condenses the vapour. Due to the gravitational pull, the liquid then returns to complete the cycle. This process typically occurs with a very small temperature difference along the pipe.

Besides air conditioners and other HVAC applications, heat pipes are used in the cooling of space crafts, casting dies, electronic circuitry, nuclear-powered generators, energy conservation, for defrosting applications and in the food industry.

APPLICATIONS

Hospitals
Libraries
Museums
Supermarkets
Hotel/Motel
Manufacturers
Clean Rooms
Bakeries
Restaurants
Schools
Swimming Pool Enclosures
Film Processing and Drying
Injection Molding
Warehouses
Print Shops
Office Buildings
Machine Shops
Laboratories
Archives
Electronic Assembly
Health Care Facilities

BENEFITS

Improves Indoor Air Quality
Better Dehumidification
Lower Initial Cost
Substantial Energy Savings
Provides Healthier,
More Comfortable Working
Environment
Durable Copper Heat Pipes
Provide Long Service,
Low Maintenance
No Mechanical or Electrical Input.

TREATING FRESH AIR

One of the Best Applications…
Fresh air make up or exchange brings heat and humidity into the air conditioned space. The addition of Dinh Dehumidifer Heat Pipes to fresh air machines removes most of the moisture from the incoming air without the energy penalty.

Therefore, no additional dehumidification burden will be placed on the existing air conditioning system.

the results are better inside air and more efficiency.

DEHUMIDIFICATION HEAT PIPES

WORKING PRINCIPLES

When applied to HVAC, SPC heat pipes provide significant dehumidification enhancement and improved indoor air quality, with heat transfer occurring without the need for any energy input.

The additional benefit of energy saving is beneficial, especially in cases where reheat is required. Depending on different parameters, SPC heat pipes can double the amount of moisture removed by an air conditioner’s cooling coil.

By circuiting SPC heat pipes in sections before and after the cooling coil (as in the above diagram), heat is removed from the air stream before it encounters the cooling coil. This passively pre-cooled air translates to lesser required
sensible cooling, providing more latent capacity, and superior dehumidification.

The now ‘over-cooled’ air passes across the re-heat section of the heat pipe, bringing the air temperature to a comfortable supply condition. This reheat is provided by the same heat energy which was absorbed from the incoming air stream. In the case of fresh air treatment, SPC’s heat pipes can be used to pre-cool the incoming outside air before it is cooled and dehumidified by the cooling coil.

The heat pipes then reheat the air to the ‘neutral’ supply temperature. Heat pipes are particularly useful in displacement ventilation systems where the air is supplied directly into the occupied space at a low level. When combined with cooling systems, the primary air must be dehumidified to prevent sweating of the ceiling as well as reheated to a few degrees below the space temperature.

TYPES OF DEHUMIDIFICATION HEAT PIPE

HORSESHOE HEAT PIPES: SPC HPD

Applications:
≈ Fresh air systems
≈ Ideal for applications that require a constant efficiency
device for reduced temperature and humidity

BENEFITS AND ADVANTAGES

CONTROLLABLE HEAT PIPES: SPC HPD-C

Applications:
≈ Ideal for precise temperature and humidity control in
specialised establishments such as paint shops,
laboratories and operation theaters

01. Lowers Cooling Coil Load

02. Low RH

03. 30% Net Energy Saving

APPLICATION OF HEAT PIPES

HEAT RECOVERY

As demands for energy-efficient buildings increase, ensuring increased energy savings has become more important than ever.

One of the simplest ways to guarantee energy efficiency is through the utilisation of a heat pipe whereby thermal energy can be recovered from cold exhaust air and used to pre-cool warmer fresh air.

WORKING PRINCIPLES

Typically, heat pipes can be arranged with airstreams side by side using tubes sloping down towards the warmer air. Alternatively, the air streams can be stacked with the warmer airstream at the bottom. This coupled with the flexibility of sizing to suit the ductwork or air handling unit makes SPC heat pipes the ideal heat recovery solution.

HEAT RECOVERY HEAT PIPES

WORKING PRINCIPLES

As demands for energy-efficient buildings increase, ensuring increased energy savings has become more important than ever. One of the simplest ways to guarantee energy efficiency is through the utilisation of a heat pipe whereby thermal energy can be recovered from cold exhaust air and used to pre-cool warmer fresh air.

TYPES OF HEAT RECOVERY HEAT PIPE

VERTICAL HEAT PIPE HEAT RECOVERY: SPC HPHR-V

Applications:
≈ Suited for both heating and cooling recovery
≈ Process applications, hospitals, pharmaceuticals and other critical functional areas

HORIZONTAL HEAT PIPE HEAT RECOVERY: SPC HPHR-H

BI-DIRECTIONAL HEAT PIPE HEAT RECOVERY: SPC HPHR-B

Applications:
≈ Suited for climates with equal calls for cooling and heating
≈ Increased annual cost savings

BENEFITS AND ADVANTAGES

01. Equal Heat/Cool Recovery

02. HPHR Series can earn you LEED Points

03. Isolated Airstreams

Singapore’s Trusted Heat Pipe Engineers

“The SPC Heatpipe system was installed a few years back in the AHUs for Annex Halls ac system at the Science Centre specially for the PIXAR Exhibition which demanded a very stringent humidity control.

With your team of dedicated engineers and consultant, we managed to the get the system running well and had no problem in maintaining the temperature and RH of the exhibition halls at 22 degree and below 50% during the exhibition period.

Thank you for your dedication and assistance in the installation and maintenance of the system.”

Mohd Jaafar B Dollah

Acting Asst Director, Facilities and Estates Management
Science Centre Singapore

Maximize Your Success

Contact us for expert guidance, tailored strategies, and installation of Heat Pipes, Heat Exchanger or Air Con maintenance.