Use Intel XDK
Build your App in Construct 2 to Android
At the Intel XDK you select "Use a existing Application" and then press "Build" - At the Buildsite you choose "Crosswalk Android". Upload your Code and Logos and then press "Build" - 1 Minute later, you can download your APK-File
To test your APK, you need a Android Device with Android 4.2 (Jellybean)