Link list by Leong Yu Xuan (Yuhuass)

Introduction

leong_yu_xuan_3 — 2025-04-09 09:13:33 UTC

Why do this?

Solar cookers are important because they offer an environmentally friendly way to cook food and pasteurize water, reducing reliance on traditional fuels and promoting cleaner energy practices.

How is this applied or useful?

It can make by simple material such as cardboard and aluminium foil.It can be applied in the field.

Design Rationale

leong_yu_xuan_3 — 2025-04-09 09:30:14 UTC

Why design like that?

Shiny and polished outer casing are poorer emitters of radiation.It also helps to reduce loss of thermal energy .Black surface are good absorbers of radiation,so that it can heat up the surface faster.Aluminium foil allows the light reflect to the black surface to heat up faster.

Materials and Methods

leong_yu_xuan_3 — 2025-04-09 09:35:34 UTC

Cardboard,aluminium foil,chopsticks and black paper.

How to build?

Results and data

leong_yu_xuan_3 — 2025-04-09 09:38:53 UTC

With a small solar panel cooker, it might be possible to melt butter in 15 minutes, to bake cookies in 2 hours, and to cook rice for four people in 4 hours. With a high performing parabolic solar cooker, you may be able to grill a steak in minutes.

Analysis and Evaluation

leong_yu_xuan_3 — 2025-04-09 09:48:46 UTC

It can only work at the daytime.At night there is no sunlight to convert into thermal energy.We can replace the aluminium foil with mirrors so that it can reflect more sunlight.we can replace the cardboard with foam board because foam board poorer conductors of thermal energy.inner layer can use metter because it is a batter conductor of thermal energy.