Abstract

Introducing the Energy-Saving House with Natural Methods (NPH)

The Energy-Saving House with Natural Methods (Natural Passive House – NPH) is a technology designed to use natural energy sources. It builds upon two innovations: Innovation 1 is the Energy-Saving Air Flow Block (AFB) with patent design number 99933, and Innovation 2 is the Underground Cooling System, which brings cool air from underground into the AFB walls.

  • With this method, when the wall receives heat, the air inside the wall expands, creating pressure that pushes the hot air (or air with lower density or lighter weight) upwards. This is a unique phenomenon of AFB walls and also follows the principles of science. This phenomenon creates a suction force from the bottom of the wall, drawing cool air from the underground cooling system into the AFB wall.
  • The NPH system manages natural energy through heat-dissipating walls, consisting of four main components: 1) Underground Cooling System 2) Heat dissipation through walls (Wall convection) using AFB walls 3) Heat dissipation through the floor (Floor convection) or the cat hole, and 4) Heat dissipation through the ceiling (Ceiling convection).
  • All the systems designed above use only natural energy or Natural draft. No electrical systems are installed, eliminating the need for maintenance, repairs, or energy costs associated with electrical consumption.
  • Research results from real-world testing show that the NPH system closely matches the calculated estimates. The NPH system helps protect the indoor temperature, cooling the house by about 3-5°C. Energy savings have increased by approximately 20-30%. Testing the NPH system has shown that the period when indoor temperatures exceed 30°C is half as long when the system is active, approximately 2 times shorter. This means the house stays cooler and more comfortable for a longer period, saving more energy.
  • The NPH system has a patent registration number 2403003429.
  • Using AFB bricks saves 5-30% energy compared to other types of walls, and the NPH system can provide an additional 10-20% energy savings over AFB walls (based on test results).
  • If AFB energy-saving bricks and the NPH system are widely adopted, they could reduce energy costs by approximately 1.8 billion baht per year.